Calligraphers are people who are good at calligraphy, have the ability to write Chinese characters and push Chinese characters to the artistic level. In short, it is an artist who mainly creates calligraphy, or someone who is proficient in calligraphy.
For tea, the ancients recorded and applied it. In the Song Dynasty, there was a custom that officials and soldiers sent tea to shops in the street and begged for money and goods. In the late Ming and early Qing dynasties, tea was also considered as cold water.